Hashing machine



Aug. 2,. 1927.

o. c. SCHMIDT E 29. 1924 3 Sheets-Sheet l lZO lNVENTORS.

Aug. 2,1927. v I 1.632965 0. C. SCHMIDT ET AL HASHING MACHINE Filed Sept. 29, 1924 s Sheets-Sheet 5 I 6 i l l x i /E 57 I 0 IO t3 6 Patented Aug. 2, 1927. I

UNITED STATES PATENT OFFICE.

OSCAR C. SCHMIDT ANID AUGUST G. KLAWITTER, OF CINCINNATI, OHIO, ASSIGNOBS TO THE CINCINNATI BUTCHERS SUPPLY COMPANY, OF CINCINNATI, OHIO, A (103- PORATION OHIO.

.HASHING MACHINE.-

Application filed September 29, 1924. Serial No. 740,444.

()ur invention relates to hashing machines of the character of those used principally for hashing entrails and other viscera parts and ofl'al waste products.

In hashing machines of the character mentioned it is usual to provide a series of rotating knives and a series of rotating saws, spaced apart to form spaces between the rotating knives into which the rotating saws project, and to form spaces between the rotating saws intowhich the knives project. It has heretofore also been a usual practice to provide. combs, the teeth whereof projected horizontally into said spaces from the outer sides of said sets of cutting devices, with the result that the hashed material was carried with the saws and knives against the horizontally disposed combs and packed in pockets formed between said combs and the frame of the machine, the continuing operation of the machine densifying the packed material, which acted retarding'ly on the knives and saws, materially increasing the power requirements for rotating the same and acting as brakes upon the same.

One of the objects of our invention is to avoid these objections and to provide combs the teeth whereof extend up and down in the spaces between the saws and knives,

whereby the material which is carried against said combs by the saws and knives is caused to roll and drop by gravity and the saws and knives are relieved from excess resistance by the material, and whereby fur-v 85 ther the material thus contacting the combs is effectively subjected to the action of spraying devices for-preventing clogging of the material.

It is the object of our invention, further,

4 to provide novel means for positioning the combs with relation to therotating cutting devices; further, to provide novel relation between the combs and the discharge passage; further, to provide novel means for releasably securing the combs'in place; further, to provide novel means whereby access to the interior of the machine is obtained; further, to'provide doors in novel manner at the sides of the rotating devices and novel means for supporting said doors; and, further, to provide novel flushing devices and relations between said flushing devices and Fig. 6 is a vertical cross-section of my improved device, taken in the plane of the irregular-line 6-6 of Fig. 4.

Fig. 7 is a horizontal section, taken in the plane of the line 77 of Fig. 4, showing the relation between the door, the comb and the frame.

Fig. 8 is a sectional detail of the same, taken on the same section line, with the door removed.

Fig. 9 is a vertical cross-section, taken in the plane of the line 9-9 of Fig. 4, showing the relation between one of the combs and one of the rotating hashing devices; and,

V Fig. 10 is a detail of the flushing mouth for the discharge trough, taken in the plane of the line 1010 of Fig. 6.

The frame is exemplified at 21 as including a lower section 22, having side walls 23, and end walls 24, 25, which are shown. formed integral with each other as a single casting. The lower section is provided wlth base flanges 26, on which the machine'may be supported on a base 27 of suitable height, provided with upright spaces 28 inline with the combs hereinafter described for permitting withdrawal of said combs.

The lower section further includes a discharge trough 31, having a lower slanting wall 32 and side walls 33, shown formed as part of the side walls of the lower section of the frame, and integral with said lower section.. A discharge spout 34 is shown as a continuation of said trough, and is provided with a lower wall andwith side walls secured to the lower wall and side walls reblades secured thereto.

spectively of said trough, as by rivets 35. The end wall 25 is provided with an opemng 36 for the trough.

The frame further comprises an upper section 41 built up of end walls '42, having flanges 43 secured to flanges 44 on the end walls 24, 25, of the lower section by means of bolts 45. The end walls of the upper section are provided with inwardly extending flanges 46, to which hopper sections 47 are secured, as by bolts 48, for forming a hopper 49 above the rotating devices.

The end walls 42'have outwardly extending arcuate edge walls 51 at their sides.

Shafts 53, 54, are journaled respectively in bearings 55, 56, on the lower frame section. Each of these shafts has a set of hashing The shaft 53 is shown as the knife shaft and has a set of rotary cutter-blades 57 secured thereto. These cutter-blades are shown secured to'the shaft 53 by providing said shaft with an annular flange 58 andwith a threaded portion 59. The knives are received over the shaft and are separated by collars 60 received about said shaft between the knives, for forming spaces 61 between said knives. A nut 62 is received over the threaded portion of said shaft against a collar 63, and is arranged toclamp said cutter blades and said collars between it and the annular flange 58 for rigidly securing said cutter blades and said collars to 'said shaft.

The shaft 54 has a series of rotary blades 65 thereon, these rotary blades being shown as toothed blades, and may for-convenience be designated saw-blades. They serve for aiding in cutting the material and in feeding the material to the cutter-blades.

The toothed blades are received about the shaft 54, which latter is provided with an annular flange 66. Collars 67 are received about the shaft between the toothed blades for forming spaces 68 between the toothed blades. A nut 69 is threaded to a threaded portion of the shaft 54, similar to the threaded portion 59 of the shaft 53, and" is received against a collar 70. The toothed blades and the collars are clamped securely to the shaft between said nut and the annular flange 66, for fixing said toothed blades to the shaft 54, so as to rotate with said shaft, in manner similar to the securing of the cutter-blades 57 to the shaft 53.

Other arrangements and kinds of blades may be employed, if desired.

The shaft 53 is caused to rotate in the direction of the arrow at, and the shaft 54 is caused to rotate in the direction of the arrow 5, by any suitable power means, exemplified as pulleys 71, 72, driven by suitable belts. -One of the shafts, for instance-the shaft 53, preferably rotates at a greater speed than the other. It may be instanced, for instance, as an exemplification but not as a limitation, that the shaft 53 may have a speed of five hundred revolutions per minute imparted to it, and the shaft 54 have a speed of fifty revolutions per minute imparted thereto. The blades on shaft 54 act retardingly on the material with relation tothe blades on shaft 53, and.act to shed the material.

The upper portions of the resective blades rotate toward each other below the hopper for causing the material fed into the hopper to move toward the overlapping portions of said blades. It will be noted that the inner portions of the peripheries of the blades on one shaft extend into the spaces between the inner portions of the blades on the other shaft, as the blades rotate. This has a continual tendency to move the material toward I The hopper is formed by the hopper sections 47, and the inner walls 42, and acts to feed the material toward the lapping portions of the hashing blades. The cut material passes into the spaces between the blades andmoves toward the teeth of the respective combs, which arrest the hashed material, the hashed material being thereby forced out of the lower portions of the spaces between the respective sets of blades, gravity aiding such action. Any hashed material which collects against the upright contact edges of the combs has a rolling motion imparted thereto, insuring that the hashed material shall drop from said blades the combs being so placed that the disharge from" the spaces between the teeth is aided and there being preferably free space between the combs below the blades for permitting the rolling and dropping of the hashed material The upright positions of the contact edges of the teeth of the combs causes the teeth to act upon the material at the points where aid of gravity is most 'eflective, the hashed material in practice rolling downwardly awa from the blades. I

cans are provided whereby ready access also providedfor flushing the devices and.

the materials during operation of the maeeaees chine, thereby aiding the falling of the material'by gravity.

- Combs are provided for the respective sets of blades. These combs are respectively exemplified as comprising teeth 76, which reach into the spaces between the blades, and have separating strips 77 between them, for forming blade-receiving spaces between said teeth. End bars 78 are provided for the combs, having extensions beyond the outer ends of the combs, between which outer ends a bar 79 extends for forming a handle for the comb. Connecting rods 80 rigidly connect the bars, the teeth and the separating strips, the rods being shown upset at their ends for forming rivets fixing said parts together. A rod 81 connects the extensions of the side-bars and is received through apiece of tubing which forms the handle, the ends of the rod being upset for forming rivet connections,

Cross-pieces 85 are secured to the frame. These respectively comprise an outer wall 86, end walls 87 and flanges 88, Bolts 89 are received through apertures in the flanges and are threaded into the side walls 23.

A space 91 is thus formed in which the comb is received, being secured therein, as by a set-screw 92 threaded into said crosspiece, the inner end of the set screw being selectively received in recesses .93 in said comb. I

The comb is guided in said space 91 when inserting and removing the comb, and the.

comb may be adjustably positioned in said guide with relation .to the axis of its hasher blades. Each of the combs and its supporting means is shown similarly constructed.

The handle of the comb provides for convenient manipulation of the same, the comb, when being released, descending into the space 28 between the pillars 94 of the base of the machine, similar spaces and pillars being provided at the respective sides of the machine.

Side doors 101 are provided. These side doors preferably form substantial parts of the walls at the sides of the blades for substantially full exposure of the blades upon moving the doors, the doors preferably extending above and below the horizontal planes of the axes of rotation of said blades.

These side doors are preferably in the form of sectors, which are shown concentric with the respective blades, although such conccntricity is not essential, the doors being bulged outwardly for providing operatmg space in which the blades may rotate. The doors are of arcuate form and rest upon arcuate seats formed by the outwardly extending arcuate end walls 51, in the upper frame section, and by arcuate flanges 102 extending inwardly from the end walls of the lower frame sections, the arcuate end walls and arcuate flanges forming arcuate supports for the upper and lower ends of the doors respectively, although it is obvious that such arcuate supports may be obtained in other manner.

Each of the doors is provided with a han dle 103.

The lower ends of the doors are respectively provided with a recess 105 forming end lugs 106 and a cross-edge 107. The comb is located in the recess when the door is on the outer wall 86 of the guide for the comb 'and the'lugs 106 received at the respect-lve ends of the comb and resting on the ends of the side Wall' 23 of the lower section of the frame. The middle portion of this side wall is beveled, as at 108, for aiding release of the material from the comb.

The end walls 87 of the guide for the comb are lower than the outer wall 86 thereof and the ends of the side wall23, forming clearance spaces 109 for the lugs 106, so that the lower end of the door'may be lowered, or swung from an upper pivot as hereinafter described, upon limited upward arcuate movement of the door, for removing the door.

The lower end of each of the doors is provided with a flange 111. Looking means are provided, shown as clamps 112 pivoted to the outer wall 86 on bolts 113, and are provided with clamping lugs 114 and handles 115. The clamping lugs are arranged to be received over the flange 111 forjclamping the door in place.

The doors are at their upper ends, provided with lugs 117 at'the respective sides of the doors, shown of hook form and received behind cross-rods 118, seated in bearings 119, extending from the upper section of the frame. The lugs 117 are shown as continuations of arcuate ribs 120 at the outside of the door for strengthening the same. The doors may swing pivotwise on the cross-rods when inserting and removing the same.

When releasing the door, the clamps are rotated for releasing the flange 111 at the lower end of the door, and the door is moved upwardly by means of its handle on its arcuate seat a suflicient distance so that its lower end, that is, its cross-edge and its lugs 106, are moved beyond their seats, so that the lower end of the door may be swung outwardly, preferably using the cross-rod 118 as a pivot, whereupon the door is lowered so that the lugs 117 at its upper end are moved downwardly and outwardly out of obstructing relations with the cross-rod 118 whereupon the door may be removed from the machine.

In inserting the door, its upper lugs 117 are first inserted in rear of the cross-rod and the door lifted so that its lower edge is received above the cross-piece 85, whereupon the door may be moved downwardly along its arcuate seat until the flange at their lower end contacts said cross-piece, whereupon the clamps are operated to lock the door in place, the upper end of the door being held by the upper lugs and the cross-rod 118.

The cross-rods 118 may be in the form of the upper ends of the doors and the side walls of the hopper. The fluid follows the material and descends by'gravity between the inner portions of the blades and readily descends upon andinto the material contacting the upright combs for softening the material and aiding in the release of the material from said combs and in the rolling and dropping of said material from the upright inner faces ofsaid combs.

The pipes may be connected by a cross pipe 123, with which a supply pipe 124 connects, the supply pipe having'a valve 125 therein for regulating or shutting off the supply of-fluid. A pipe l26'also connects with said supply pipe and with a nipple 127 threaded into the end wall 24 of the frame, which end wall is provided with a passage 128, which flares laterally and narrows vertically at its inner end, forforming a spreading spray of the fluid upon the bottom of the discharge trough. These sprays facilitate passage of the material between the blades, and the rolling and dropping of the material by gravity from the combs, and removal of the bashed material from the trough.

Our improved device is simple and the parts are-so constructed and arranged that comparatively little power is required for rotating the sets of hashcr blades, and ready access to the working parts is obtained. The sides of the sets of hasher blades are readily exposed for cleaning purposes by removal of the arcuate doors, and the combs are also readily removable, whereby the entire interior of the machine is ex osed,'and-the parts are readily cleaned. eady flow of material through the machine is also assured and the construction of the machine is strong and its operation economical.

Having thus fully described our invention what we claim as new, and desire to secure by Letters Patent, is:

1. In a hashing machine of the character described, .the combination of a plurality of ets of rotatable blades having axes of rotation located in substantially the same horizontal plane, each of said sets of blades including spaced blades, means for rotating said sets of blades toward-each other at their upper portions, spaced-apart combs provided with teeth extending upwardly into said spaces, guides for said combs located other at their upper portions, spacedpart combs provided with teeth extending upwardly into the spaces between blades. of said respective sets of blades, the inner faces of said combs being substantially vertical and substantially parallel with each other, whereby the cut material in said spaces is caused to roll downwardl along said inner faces, an inclined chute etween said inner faces for receiving said material,

and a spraying nozzle at the upper end of said inclined chute arranged for conducting a-spray along said inclined' chute.

3. In a hashing machine of the character described, the combination of a plurality of sets of rotatable blades, each of said sets of blades including spaced blades, means for r0- tating said sets of blades toward each other at their upper port-ions, spraying means at the upper portions of said respective sets of rotatable blades arranged for projecting oppositely' directed sprays in the general directions of rotation of the upper portions ofsaid respective sets of blades, spaced-apart combs below the axes of rotation of said blades, said combs provided with teeth extending upwardly into the spaces between blades of said respective sets of blades, the inner faces of said combs being substantially parallel with each other, an inclined chute between said inner faces for receiving said material, and a spraying nozzle at the upper endof said inclined chute arranged for conducting a spray along said inclined chute.

4. In a hashing machine of the character described, the combination of a plurality of sets of spaced hashing blades located in substantially similar horizontal planes, means.

for rotating said blades with the upperportions of their peripheries rotating toward each other, a hopper above said upper portions, releasable arcuate doors about the outer portions of said blades, means for securing said doors about said outer portions with a space between the upper edge of each of said doors and said hopper, spraying means for projecting sprays through said last-named spaces, combs at the lower ends of said respective doors for said respective sets of blades, said combs extendin downwardly below said respective sets 0' blades, a trough between said combs, and flushing means for said trough.

5. In a hashing machine of the character described, the combination of a plurality of sets of rotatable spaced hashing blades,

ing blades having spaces therebetween, a

shafts on which said blades of said respectiv'e sets are located, said shafts located in substantially similar horizontal planes, means extending substantially the distance between said hopper and said respective combs about. the outer arcs of said respective sets of blades. 6. In a hashing machine of the character described, the combination of a plurality of sets of rotatable spaced hashing blades located in substantially similar horizontal planes, means for rotating said sets of blades toward each other at their upper portions, spaced-apart combs below said shafts for said respective sets of blades, a hopper above the inner portions of said sets of blades,.

arcuate doors extending substantially the distance between said hopper and sald respective combs about the outer arcs of said respective sets of blades, and means whereby toremove said doors and means whereby to remove said combs for exposure of both said sets of blades. v

7. In a hashing machine of the character described, the combination of rotatable hashshaft on which said blades are located, means for rotating said shaft, a comb below said shaft provided with teeth extending upwardly into said spaces, a hopper above said set of blades, and an arcuate door extending substantially. the distance between said hopper and said comb about the path of rotation of said blades, the upper end of said arcuate door being spaced from the lower end of said hopper to form a space above said blades, and spraying means at said lastnamed space for projecting a spray through said space, and said spraying means including a hollow perforated pipe which also serves as supporting means for said arcuate door.

8. In a hashingmachine of the character described, the combination of a plurality of sets of rotatable spaced hashing blades, located in substantially similar horizontal planes, means for rotating said sets of blades toward each other at their upper portions,

spaced-apart combs below said shafts pro-' vided with teeth extending upwardly into the spaces between said blades, a hopper above the inner portions of said sets of blades, arcuate doors extending substantially the distance between said hopper and said respective combs about the outer arcs of said respective sets of blades, the upper ends of said arcuate doors being spaced from the lower ends of said hopper to form spaces above said respective sets of rotatable blades, and spraying means at said respective spaces arranged for projecting sprays through said i spaces and toward each other. I

9. In a hashing machine of the character described, the combination of a frame, a plurality of sets of spaced hashing blades, means for rotating said sets of blades toward each other at their upper portions, the axes of rotations of said sets. of blades being insubstantially coincident horizontal planes, spaced-apart combs below said axes and provided with teeth extending upwardly into the spaces between said blades, said frame provided with guides for said combs, said guides provided with end walls at the respective ends of said combs, a hopper above the inner portions of said sets of rotatable blades, arcuate doors provided with. hook-members and guide-faces at their upper ends, and means on said frame coacting with the latter, the lower ends of said arcuate doors provided with end lugs and a recess therebetween, said end lugs received on said end walls and said combs located in said recesses when said parts are assembled, and said arcuate doors being movable with upward cro.:swise of and about said retaining means on said frame.

10. In a hashing machine, the combination of a frame comprising a side wall, a set of rotatable spaced blades at the inner side of said wall, a shaft on which said blades are mounted,'an arcuate door forming a substantial part of said side wall, said frame provided with arcuate guides for said door, said frame having a substantially upright recess under said blades provided with walls including an outer wall forming a support for the lower end of said door.

11. In a hashing machine, the combination of a frame comprising aside wall, a set of rotatable spaced blades at the inner side of said side Wall, a comb provided with teeth extending into said spaces from below, an arcuate door substantially concentric with the outer portion of the path of rotation of said set of blades forming a substantial part of said side wall at the side of said-set of blades, said frame provided with arcuate guides for said door, a support for said comb, said door provided with an end recess in which said comb is located when said door I OSOAR'C. SCHMIDT. r,

AUGUST G. KLAWITTER; 

